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| Deep Desiliconization of Sodium Aluminate Solution with CaO |
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Received:July 15, 2013
Revised:January 04, 2015
Accepted:July 18, 2013
Published Online:February 12, 2015
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| DOI： |
| KeyWord:sodium;aluminate solution,CaO,desilication,thermomechanical;analysis |
| Author | Institution |
| yuanjie |
Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology |
| HE Xiaocai |
Department of Metallurgy Kunming Metallurgical Research Institute |
| SONG Ning |
Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology |
| CHEN Jiahui |
Department of Metallurgy Kunming Metallurgical Research Institute |
| WAN Ning |
Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology |
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| Abstract: |
| As the desilicating agent of sodium aluminate solution calcium oxide(CaO)is rational though thermomechanical analysis.The results showed desilication rate is increased with CaO addition,temperature increase and time extension. The optimized technological conditions for the deep desilication in sodium aluminate solution are as follows: the amount of CaO added is 4g/L, temperature is 85℃,and desilication duration time is 2h.In the experiment desilication rate is 98.52% and the surplus Si in sodium aluminate solution is bellow 0.50mg/L. |
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